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Driving is a dangerous thing, especially if it is not a good driving habit. It will increase the risk. Are you still doing it?
Sliding
Many driving drivers feel that going downhill and sliding on a neutral plane can save fuel and take a neutral approach when going downhill. But this is only for the previous carburetor engine, the current models are basically the electronic fuel injection engine, the way the EFI system to the engine oil supply is controlled by the throttle and ECU, with speeding off the oil and reducing oil off The function. This means that the EFI engine is in the off state when coasting with gears, but is instead fueled when it is coasting to maintain idle speed.
In addition to driving the car, the engine can also achieve engine braking. The engine brake is used to limit the downhill speed of the car, while the neutral coaster can only brake with the brake. In the long slope, the long brake will quickly increase the temperature of the brake pads. Due to thermal degradation, the braking performance is greatly reduced and the vehicle cannot be stopped.
Extinguish neutral gear
This will happen in the event of a long downhill traffic jam, and the consequences of slipping out of the air and stopping at a neutral level will be more serious than the slipping of a neutral off-road. In the off state, the steering wheel will be locked and the vehicle will lose its steering function. Once the engine is turned off, advanced electronic equipment will lose its function. After the engine is shut off, the brake assist pump will be started by the engine vacuum. When the engine stops working, the brake auxiliary pump will stop working. Does not work, so the brakes become very heavy, 100% use pedal pressure; when the engine is off or the vehicle is sliding in neutral, the transmission's first and intermediate shafts stop rotating, and the friction surfaces will not be normal. Lubrication causes the temperature of the parts to rise. A long time will cause the synchronizer or some bearings to burn out.
Naked coasting is not only less fuel efficient for today's EFI engines, but more costly than coasting. However, whether or not to save fuel is a trivial matter. The main thing is that air-to-air gliding is very dangerous. Extinguishing the neutral gear is undoubtedly suicidal. When the vehicle is damaged, the steering system, brake system, and electronic assistance system will all fail. Even if we do not have the above erroneous operation, the accident may still happen. What should I do if I have a brake failure?
1. In the event of a brake failure, it must not panic, control the direction, and use the engine brake to reduce the speed. In the long downhill section, the speed is getting faster and faster, the transmission has been difficult to open and close, and it is necessary to try to seize the block, hit a big foot of the throttle, back off the block, and then boom a throttle, into the block and quickly open the double flash.
2. If the speed is not fast, you can try to pull the hand brake can reduce the speed. But pay attention to pull the handbrake can not pull down, easy to make the brake disc "locked", it is likely to damage the transmission parts and lose braking ability, should gradually pull the handbrake.
3. If the above methods all fail, you can only hold the steering wheel with both hands, slowly approach the side of the road barriers, walls, mountains and other natural obstacles use the car's bumper, car parts and other steel parts friction, collision, to force The purpose of parking out of danger, as far as possible to reduce accident losses.
In the course of daily use, the maintenance of the brake system must not be neglected. There are too many impurities in the brake master cylinder, the seal is not strict, the vacuum booster pump fails, the brake fluid is dirty, or several brake fluids are mixed and heated. Failure of the main pump or the pump can result in brake failure. A long brake will quickly increase the temperature of the brake pads. Due to thermal degradation, the braking performance is greatly reduced. The last is the situation of serious overloading, and the increase in inertia directly leads to the failure of the brakes.
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